Machine for painting the interior of pipe bowls



Nov. 13, 1951 P. DELAND 2,575,007

MACHINE FOR PAINTING THE INTERIOR OF PIPE BOWLS Filed May 4, 1949 2 SHEETS--SHEET.1

23 a I I I 5 7 v I I I! Hull 11 'P. DELAND 2,575,007

MACHINE FOR PAINTING THE INTERIOR OF PIPE BOWLS Nov; 13, 1951 2 SHEETS-SHEET 2 Filed May 4, 1949 57mm; 1 41M fielarzci Patented Nov. 13, 1951 UNITED STATES PATENT orncs MACHINE FOR PAINTING THE INTERIOR OF PIPE BOWLS Paul Deland, Montreal, Quebec, Canada Application May 4, 1949, Serial No. 91,299

3 Claims. (CI. 91-39) This application is a continuation in part of a previous application Serial No. 623,619 filed October 22, 1945, and now abandoned.

The present invention pertains to a novel painting machine designed especially, but not exclusively, for painting the interiors of cavities such as, for example, pipe bowls.

The principal object of the invention is to provide a machine of this character incorporating a rotating brush to which the paint is fed from a suitable receptacle. Mixing blades are provided within the receptacle with means for rotating them, and the receptacle itself is preferably rotated in the opposite direction,

The brush head is in the form of a tube depending from the receptacle and fitted with bristles on its exterior. Another object of the invention is to feed the paint positively to the brush head, and this object is accomplished by a screw rotating with the mixing blades and located therebeneath, or between the blades and the brush head.

Additional objects of the invention are to provide a machine in which the aforementioned receptacle and blades are driven by a single motor and in which the flow of paint is regulated by wire rotating in the tube.

The invention is fully disclosed by way of example in the following description and in the accompanying drawings in which:

Figure 1 is an elevation of the machine;

Figure 2 is a vertical section of the tube and depending brush;

Figure 3 is a plan view;

Figure 4 is a horizontal section on line 4-4 of Figure 1;

Figure 5 is a horizontal section on line 5 5 of Figure 1;

Figure 6 is a horizontal section on line 6-6 of Figure 1;

Figure '7 is a vertical section of the machine; and

Figure 8 is a detail elevation of one of the mixing blades.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

The supporting frame of the device consists of one upright I raising from a plate or floor 2. The upright I is located at one end of the rectangular plate 2 and with the help of circular bands 3 holds vertically a cylinder 4 which is also supported by an intermediate band 5 having rollers 6. Rollers 6 receive the lower part of cylinder 4 and the lower band 3 encloses the hopper I forming the lower part of cylinder 4 as shown in Figure 1. At

the lower end of the hopper I is joined by screw thread a tube "8 extending downwardly and equipped with a valve 9. Below the valve, the tube 8 is formed with a longitudinal slots In for a U fabric clip I I which in turn retains outwardly directed bristles I2, asshown more clearly in Figure 2.

The cylindrical receptacle 4 is covered by a flat cover I3 in the center of which is journalled a vertical shaft I4. The shaft is also centered at the lower end of the cylinder 4 by brace bearing I5 in hopper I and carries at its lower end a screw I6 disposed within the hopper l. The upper end of the shaft I4, over the cover I3, carries a bevel gear I! meshing with another bevel gear I8 mounted at one end on a horizontal shaft I9 passing through upright I. The other end of the shaft I9 is a bevel gear meshing with a similar bevel gear 2| at the upper end of a shaft 22 held also by circular bands 3. The lower end of the shaft 22 carries a pulley 28 belted to an electric motor 24 mounted to upright I, by means of a belt 25 or other suitable gearing. At approximately the midpoint level of cylinder 4, to shaft 22 is secured a pulley 2 6 in line with an annular pulley 27 secured to and surrounding the cylinder 4. The pulleys 26 and 2'! are joined by an endless belt 28. Shaft I4 carries, within the cylinder 4, a set of three equally spaced blades 29 formed with vertical slots 30 staggered for mixing action.

To the lower part of the screw I6 is fixed a vertical wire 3| which is suspended in the center of tube 8 and ends near the valve 9. To the lower part of the upright I is pivotally and slidably mounted by support 32 a table 33 receiving a smoking pipe 34. On the table 33 is articulated a lever 35 holding a funnel 36 to be inserted in the pipe 34. A foot pedal 31 is used for raising the table 33 and vertical rods 38 on the sides of table 33 limit the lateral movement. Hopper I is provided with a drain 39.

In the operation of the device, the running of the motor 24 drives the belt 25 and vertical shaft 22. The pulley 26 and the belt 28 rotate the cylinder 4, while the bevel gears 2I, 2i), and I8, ll rotate the shaft I4 in the opposite direction. The cylinder contains paint, which is stirred by the slotted blades 29, and the paint is fed towards the bottom of the hopper I by means of the screw I6 and wire 3!. If the valve 9 is unscrewed the thick paint is discharged slowly through slot I9 from which it drops on the surface of the slowly rotating brush head comprised of the bristles I2. Pipe 34, to be painted interiorly, is lifted by pressing on foot pedal 31, and the cavity is presented to the rotating brush head guided by funnel 36.

Although specific embodiments of the invention have been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention as indicated by the appended claims.

What Iclaim is:

1. A painting machine comprising a frame, a

paint receptacle rotatably supported thereby, a tube extending downwardly frpmzsaidreceptaclea the lower end of said tube having longitudinal-l slots, a clip inserted in said s1o,ts, bristles received in said clip and extendingto theinterior" of said tube.

2. A painting machine comprising a frame a paint receptacle rotatably supported thereb'ma" tube extending downwardly from said receptacle, the.- lower end of said'- tube having longitudinal slots, a clip insertedin said slots; bristles re-' ceived in said clipand extending to the interior of said tube, a shaft'journalled axially in said receptacle, mixingblades carried by said shaft, and meansfor-rotatingsaid shaft:

3. A painting machine comprising a frame, a paint receptacle rotatably supported thereby, a tube extending downwardly from said receptacle, the lower end of said tube having longitudinal slots, a clip inserted in said slots, bristles received in said clip and extending to the interior of said tube, a shaft journalled axially in said receptacle, mixing blades carried by said shaft, means for -rotating said shaft and receptacle in opposite directions.

PAUL DELAND.

REFERENCES CITED The-following references are of record in the file I of. this ,patent UNITED STATES PATENTS Number 3' Name Date 360,746 Weindel 4. Apr. 5, 1887 478,031. Stone June 28, 1892 642,135 Kochet a1 Jan. 30,1900 667,369 Redman Feb. 5, 1901 1,216,539 Baker Feb. 20, 1917 1,526,093: Rockman Feb. 10, .1925- 

